99671088 has 90 divisors (see below), whose sum is σ = 285196156. Its totient is φ = 29972800.

The previous prime is 99671069. The next prime is 99671113. The reversal of 99671088 is 88017699.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 760783 + ... + 760913.

Almost surely, 2^99671088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99671088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142598078).

99671088 is an abundant number, since it is smaller than the sum of its proper divisors (185525068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99671088 is a wasteful number, since it uses less digits than its factorization.

99671088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 99671088 is about 9983.5408548270. The cubic root of 99671088 is about 463.6494329824.

Multiplying 99671088 by its sum of digits (48), we get a square (4784212224 = 69168²).

99671088 divided by its sum of digits (48) gives a square (2076481 = 1441²).

The spelling of 99671088 in words is "ninety-nine million, six hundred seventy-one thousand, eighty-eight".